For readers of Cormac McCarthy, Denis Johnson, and Ron Rash, the electrifying contemporary western thriller where Breaking Bad meets No Country for Old Men: now in paperback.   Since their father's untimely death, Wyatt Smith and his twin sister, Lucy, have scraped by alone on the family ranch in Box Elder County, Utah. That is until one morning when, after spotting one of their steers lying dead in the field, Wyatt is hit in the arm by a hail of gunfire that takes four more